Annual migration celebration in northwest Minnesota where tallgrass prairie, hardwood and conifer forests uniquely merge with wetlands. Morning guided fieldtrips, socials, exhibitors. Evening presentations by Carrol Henderson on his role in the recovery of the Peregrine Falcon, humorist/writer Al Batt, and Lyanda Haupt on her recent book Mozart's Starling. Online program and registration https://www.visitdetroitlakes.com/events/festival-of-birds.